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Photoexcited C-DOTS reduce the number of bacterial colonies (log CFU/mL) based on the light dose 450 nm, 40 mW/cm2 delivered. (A) Planktonic S. aureus + C-DOTS. (B) Biofilm of S. aureus + C-DOTS. The “control” group refers to the bacteria + light system. The group “0 J/cm2” corresponds to the bacteria + C-DOTS system, where it was observed that the C-DOTS by themselves decreased the bacterial population in 102 CFU/mL.
